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Kubota L39 - Troubleshooting Tips

The day before I recognized some issue with my Kubota L39 backhoe. Diesel motor does not turn over. Tell me please what kind of failure?

Fuel type is wrong. Fault in fuel injection pump. Inspect and replace. Wrong fuel pump timing. Adjustment required.

L39 TLB damages. Poor engine performance. How should I troubleshoot it?

There is no full fuel feed due to misalignment of fuel pump control rods. Adjust control rods.

Tell me why diesel engine stops suddenly?

Bearing bush burning-out. Check and replace it. Fuel line or fuel filter plugged.

L39 tractor trouble. Hard shifting transmission. What's fault?

Failure to fully depress clutch pedal when shifting - Instruct driver.

I would like to know why steering wheel spinning too easy? What are my actions to correct the situation?

Low hydraulic oil level in tank - Pour full. Possible malfunction steering hydraulic cylinder - Perform repair. Steering pump have worn - Install a new pump.

I bought a Kubota L39 TLB in february. Currently there is issue. Diesel won't start. Could someone help me define the source of damage?

Starter does not work - Replace or repair. Fuel line is clogged up - Clean and wash. Filter element is dirty - Renstall filter element. Piston ring failure - You need repair.

I use the same model. Recently I noticed steering wheel operate very badly. Can anybody tell me what's issue?

Minimum Oil Rating. Suction filter dirty. Clean and remove. Front wheels aligned wrong. Leak in hydraulic connections. It is necessary to fix a damage. Steering pump is worn out. Repair the pump. Power steering defect. Install the new power steering.

L39 tractor failure. Diesel motor hard to start. Need help to identify the source of breakdown. What do I need to check?

Dirty air filter. Clean/replace air filter. Dirty fuel filter. Replace fuel filter. Cold start system used incorrectly. Wear or deformation of piston rings. Cracked injector Body or Cup. Water mixed in the fuel. Fuel too heavy at low temperature.

L39 tractor motor problems. Diesel engine hard to start regularly. How could i fix it?

Restricted Fuel Lines. Air leakage to the fuel inlet. Exhaust pipe is clogged. Low voltage - Charge battery. Injection fuel is little or the spray is not excellent. Filter clogged. Long Idle periods.

Steering does not operate on my tractor. How can I fix it?

The air was formed in hydraulic system. You should release air from system. Hydraulic oil low level in system. It is required to add oil. Possible malfunction of hydraulic steering cylinder Change the seal.

I use the same tractor. Why diesel engine does not start? How could i fix damage?

Valve timing is wrong - Make adjustment. Bad cylinder compression. Cylinder bores wear - You must fix it. Leaks between seats and valves - Need Removal of leakage.

Having troubles with Kubota L39 backhoe. Diesel knocks. what is the probable trouble?

Lack of oil. You should pour this. Coolant temperature is low.

Please help to understand why front axle produces a rumble incessantly at the moment of motion?

Teeth of gears broke. Replace gears. Bearings are firmly erased. You need to change it.

I'm the owner this tractor about 4 years. Sometimes engine start is very difficult. What a breakdown?

Injection nozzle has clog. You should to diagnose injector. High-pressure fuel pump is not working. Replace fuel pump.

I bought the same tractor. Can anybody tell me why differential lock assembly does not work swiftly? How to solve the problem?

Diaphragm worn out or replace friction clutch discs. Replace parts.

I have Kubota L39 TLB. Diesel engine not starting. Help me what's issue?

Probably Dirt in the fuel system. Otherwise high-pressure fuel pump is improperly adjuste.

I have trouble. Diesel overheats regularly. How can I repair it?

Lack of coolant in cooling system - Fill cooling system to proper level. Radiator screen or fins clogged - Clean radiator screen or fins. Engine overloaded - Reduce engine load. Fan belt is damaged. Change as required.

My brother has Kubota L39 backhoe. Today he heard a strange noise in the crankcase of the drive axle. Which part is damaged?

All symptoms denote destruction of bearings.

Can someone say me what is defect if motor exhaust white gas?

When white smoke appeared from exhaust pipe you required to replace piston rings immediately. Clogged air cleaner - Clean or replace elements.